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b3a8585bc1
`llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. This patch: - Removes -march if the .ll file already has a matching `target triple` directive or -mtriple argument. - In all other cases changes -march=ppc32/-march=ppc64 to -mtriple=ppc32--/-mtriple=ppc64-- See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309754
28 lines
774 B
LLVM
28 lines
774 B
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-apple-darwin | FileCheck %s
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define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind {
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; CHECK-LABEL: exchange_and_add:
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; CHECK: lwarx {{r[0-9]+}}, 0, {{r[0-9]+}}
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%tmp = atomicrmw add i32* %mem, i32 %val monotonic
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; CHECK: stwcx. {{r[0-9]+}}, 0, {{r[0-9]+}}
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ret i32 %tmp
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}
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define i32 @exchange_and_cmp(i32* %mem) nounwind {
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; CHECK-LABEL: exchange_and_cmp:
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; CHECK: lwarx
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%tmppair = cmpxchg i32* %mem, i32 0, i32 1 monotonic monotonic
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%tmp = extractvalue { i32, i1 } %tmppair, 0
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; CHECK: stwcx.
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; CHECK: stwcx.
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ret i32 %tmp
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}
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define i32 @exchange(i32* %mem, i32 %val) nounwind {
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; CHECK-LABEL: exchange:
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; CHECK: lwarx
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%tmp = atomicrmw xchg i32* %mem, i32 1 monotonic
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; CHECK: stwcx.
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ret i32 %tmp
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}
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